Datasheet

10 Fm
0.1 Fm
R
3
R
2
R
2
22pF
R
3
R
1
R
2
C
1
C
2
VIN+
(1V )
RMS
VIN-
(1V )
RMS
VCOMAD
AnalogInput
(2V )
RMS
+
10 Fm
0.1 Fm
R
3
R
1
R
2
C
1
C
2
VIN+
(1V )
RMS
VCOMAD
AnalogInput
(2V )
RMS
+
C
2
VIN-
PCM3168A
PCM3168A-Q1
www.ti.com ......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008
Amplifier is an NE5532A x1 or OPA2134 x1; R
1
= 3-k Ω resistor; R
2
= 1.5-k Ω resistor; R
3
= 47- Ω resistor; C
1
= 2200-pF capacitor; C
2
=
0.01- µ F capacitor; Gain = 1; f
– 3 dB
= 48 kHz.
Figure 60. Single-Ended to Differential Buffer and Anti-Aliasing LPF for Differential ADC Input
Amplifier is an NE5532A x1 or OPA2134 x1; R
1
= 3-k Ω resistor; R
2
= 1.5-k Ω resistor; R
3
= 47- Ω resistor; C
1
= 2200-pF capacitor; C
2
=
0.022- µ F capacitor; Gain = 0.5; f
– 3 dB
= 48 kHz.
Figure 61. Buffer and Anti-Aliasing LPF for Single-Ended ADC Input
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Product Folder Link(s): PCM3168A PCM3168A-Q1